EP 0566828 B1 19970319 - Length measuring device with temperature compensation
Title (en)
Length measuring device with temperature compensation
Title (de)
Temperaturkompensierte Längenmesseinrichtung
Title (fr)
Dispositif de mesure de longueur à compensation de température
Publication
Application
Priority
DE 4212970 A 19920418
Abstract (en)
[origin: EP0566828A2] In such a length measuring device for measuring the relative position of two objects (1, 2), the graduation on a scale carrier (4) is scanned by a scanning unit to obtain positional measured values. In order to compensate temperature-induced measuring errors, the scale carrier (4) is fixedly connected to a first fixed point (P1) within the measuring length, and otherwise connected in a longitudinally displaceable manner to a support body (3). The support body (3) is, for its part, fixedly connected to a second fixed point (P2) within the measuring length, and otherwise connected in a longitudinally displaceable manner to one (1) of the objects. The first fixed point (P1) and/or the second fixed point (P2) can be varied within the measuring length. <IMAGE>
IPC 1-7
IPC 8 full level
G01B 5/00 (2006.01); G01B 21/02 (2006.01)
CPC (source: EP US)
G01B 5/0014 (2013.01 - EP US)
Citation (examination)
Designated contracting state (EPC)
AT CH DE FR GB IT LI
DOCDB simple family (publication)
EP 0566828 A2 19931027; EP 0566828 A3 19940608; EP 0566828 B1 19970319; AT E150542 T1 19970415; DE 4212970 A1 19931021; DE 59305827 D1 19970424; JP 2675245 B2 19971112; JP H06185916 A 19940708; US 5375338 A 19941227
DOCDB simple family (application)
EP 93101483 A 19930130; AT 93101483 T 19930130; DE 4212970 A 19920418; DE 59305827 T 19930130; JP 6045893 A 19930319; US 4412793 A 19930408